Influenza vaccines. Supplementary recommendations on use of vaccine for A2/Aichi/2/68--Hong Kong variant.
D000368:Aged; D006801:Humans; D007115:Immunization Schedule; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000382:microbiology / Q000517:prevention & control*; D008875:Middle Aged; D009975:Orthomyxoviridae / Q000276:immunology / Q000302:isolation & purification
D007252:Influenza Vaccines